How to Create a WebSphere Cluster

When you create a WebSphere cluster through the provisioning system, you create an empty container that can hold cluster members. To add cluster members to a cluster, see How to Add Cluster Members.

This task is performed as root.

Steps

1. In the Common Tasks section in the browser interface, click WebSphere 5.1.

2. Click the Cluster Management: Create link.

   The plan's Details page displays.

3. Click Run.

   The plan's Run page displays.

4. In the Plan Parameters area, select the variable settings for the Cluster component that you plan to deploy.

   Each new cluster needs a unique name. You must create a new variable set to indicate the new name for each cluster.

   • If the variable settings have been established for this component, select the appropriate settings from the menu.

   • If the settings are not available from the menu, click Select From List.

     The Select Variable Settings From List window displays.

     • To create a new set of variable settings, select Create Set.

       The following list provides commonly updated variables for the Cluster component. You can keep the default values for most variables.

       variable set name

       Required. A name for the new variable set you create.

       name

       Required. The name of the cluster.

       clusterSPSName

       Required. The name of the cluster virtual host.

   • To use variable components from another component, click Import Set.

     For more information about importing variable sets, see How to Run a Plan in N1 Grid Service Provisioning System 5.0 Operation and Provisioning Guide.

5. Select the target host.

   Target the virtual host of the deployment manager that will manage the cluster.

6. Deselect the Target Host Set checkbox.

7. If you are creating a representation of an existing cluster, select the markOnly Install option.

   This option enables you to represent an existing WebSphere 5.1 object and then manage through the provisioning system.

8. Click Run Plan (Includes Preflight).

9. View the Hosts page to verify that the cluster virtual host was created.